Droid 2 will not start

I just got my original droid replaced with a droid 2. when i got it in the mail. i started it up, and programmed it. then i went to set my google email and it didnt do anything it just froze. so i pulled the battery and tried it again. after 2 or 3 tries it finally loaded. but when i start it now it just keeps freezing. i cant do anything with it at all. ive been trying to do a hard reset on the phone, it doesnt want to work long enough to do a hard reset. any ideas?